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Table 4 Favrot’s criteria [5]

From: Canine atopic dermatitis: detailed guidelines for diagnosis and allergen identification

  Use Reliability
Set 1: • Use for clinical studies and adapt required criteria based on the goal of the study. • 5 criteria:
1. Age at onset <3 years • If higher specificity is required, 6 criteria should be fulfilled (e.g., drug trials with potential side effects)  Sens. 85.4 %
2. Mostly indoor • If higher sensitivity is required, 5 criteria should be fulfilled (e.g., epidemiological studies)  Spec. 79.1 %
3. Corticosteroid-responsive pruritus   
4. Chronic or recurrent yeast infections   • 6 criteria:
5. Affected front feet    Sens. 58.2 %
6. Affected ear pinnae  Spec. 88.5 %
7. Non-affected ear margins
8. Non-affected dorso-lumbar area
Set 2: • Use to evaluate the probability of the diagnosis of canine AD • 5 criteria:
1. Age at onset < 3 years • 5 criteria should be fulfilled  Sens. 77.2 %
2. Mostly indoor • Do not use alone for diagnosis of canine AD, and rule out resembling diseases  Spec. 83 %
3. “Alesional” pruritus at onset • 6 criteria:
4. Affected front feet  Sens. 42 %
5. Affected ear pinnae  Spec. 93.7 %
6. Non-affected ear margins
7. Non-affected dorso-lumber area